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Finding the Fourth Proportional to 266,630.84, 368,043.22 and 153,498.68

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Solution

The fourth proportional to 266,630.84, 368,043.22 and 153,498.68 is: 211,881.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,630.84 : 368,043.22 = 153,498.68 : x
  2. Step 2: Convert to fraction form
    266,630.84/368,043.22 = 153,498.68/x
  3. Step 3: Cross multiply
    266,630.84x = 368,043.22 × 153,498.68
  4. Step 4: Simplify right side
    266,630.84x = 56,494,148,452.95
  5. Step 5: Solve for x
    x = 56,494,148,452.95/266,630.84
  6. Step 6: Final answer
    x = 211,881.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.